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tigry1 [53]
4 years ago
7

A 42 Watt light bulb is connected to a 12 volt source of potential

Physics
1 answer:
abruzzese [7]4 years ago
8 0

Answer:

The natural medium emanating from the Sun and other very hot sources (now recognised as electromagnetic radiation with a wavelength of 400-750 nm), within which vision is possible.

Explanation:

just the way it is

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How fast is a skydiver going after 5 seconds or free fall and how far did he fall
RSB [31]

i'm just saying that this question makes no sense to me....but thanks for the points UwU

3 0
3 years ago
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Baker's weight and mass are measured on Earth and on the moon. Which measurement is the same in both places?
tresset_1 [31]

Answer: mass

The mass of a person is constant, weight is a force that is influenced by gravity.

4 0
3 years ago
IF THE CAPACITOR HAS PLATE AREA OF 0.2m² AND DISTANCE BETWEEN THEM IS 0.04 m. What is the capacitance if dielectric constant is
ipn [44]

Answer:

The capacitance is 1.75 nF

Explanation:

From the question we are given that

   The inner radius is

    The outer radius is 000.1

   Length of the capacitor is L = 1m

   The dielectric constant is Di = 2

  The dielectric constant is  Di2 = 4

Generally the capacitance of a capacitor can be mathematically represented as

1.75nF

               

                 

                 

                 

                 

               

                 

8 0
2 years ago
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Two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kin
ipn [44]

Hence, internal energy in cylinder B is twice than that in A.

It is given that two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kinetic energy as those in cylinder, we need to compare internal energy.

As kinetic energy is directly proportional to temperature, internal energy is also proportional to temperature.

We can say that more the average kinetic energy, more is the internal energy.

Hence, internal energy in cylinder B is twice than that in A.

The ratio in A:B is 1:2.

Learn more about kinetic energy click here brainly.com/question/11067389

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7 0
2 years ago
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed o
Zina [86]

Answer:

The height of the hill is 29.3 cm.

Explanation:

Given that,

The combined mass of a child and sled, m = 57 kg

Initial speed of the sled, u = 0

Speed at the bottom of the sled, v = 2.4 m/s

We need to find the height of the hill. The energy at the bottom and the top will remains the same due to the law of conservation of energy. So,

mgh=\dfrac{1}{2}mv^2\\\\gh=\dfrac{1}{2}v^2\\\\h=\dfrac{v^2}{2g}\\\\h=\dfrac{(2.4)^2}{2\times 9.8}\\\\h=0.293\ m\\\\h=29.3\ cm

So, the height of the hill is 29.3 cm. Hence, this is the required solution.

5 0
3 years ago
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